Bluetooth: Bluetooth 3.0 Features: ABS chocolate key core, keyboard can be separated, PU leather, high-end atmosphere. Features: Fn combined multimedia function Applicable system: The size of the leather case is specially designed for Samsung Tab S7 2020 T870/T875 tablet. The keyboard supports Android system, which can be used in many ways; Support protocol: Bluetooth 3.0/4.0/1.1 Connect the power supply through the USB interface for power supply Lithium battery capacity: 200 mA Working environment temperature: -10- +55 Charging time: 4-5 hours (8 hours to fully charge for the first time, fully charged later) Use time: 95 hours Standby time: 120 days Button life: 5 million times Effective operating distance: 10 meters Available colors: black, gold, rose gold Using tutorial: 1. Turn on the bluetooth keyboard holster and push the switch in the upper right corner from [0FF to ON]. At this time, the holster keyboard will start, and the blue light will turn off after 3 seconds. 2. Then press the [Link key]/[connect key] next to it, the blue light is on, and the Bluetooth light is flashing. 3. Turn on the tablet, find-Settings-Turn on wireless and network-Turn on Bluetooth-Search for nearby devices-[Search for the Bluetooth keyboard name of the protective case (Bluetooth keyboard)] and click Connect.